Perhaps you should try some spelling variations:
hung thang » cang thang, hung tran
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua thong » cua thuong, cua khong, cua tong
ca thuong » cao thuong, cua thuong, va thuong
cuong tap » luong tap, cong tac, luong tai
tap toan » tap doan, tap quan, bai toan
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hung thang ((cua thong) or (ca thuong)) cuong tap toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hung thang ((cua thong) OR (ca thuong)) cuong tap toan tap*.